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-rw-r--r--libs/libaom/src/av1/common/x86/convolve_avx2.c439
1 files changed, 439 insertions, 0 deletions
diff --git a/libs/libaom/src/av1/common/x86/convolve_avx2.c b/libs/libaom/src/av1/common/x86/convolve_avx2.c
new file mode 100644
index 000000000..1d5bc6fbd
--- /dev/null
+++ b/libs/libaom/src/av1/common/x86/convolve_avx2.c
@@ -0,0 +1,439 @@
+/*
+ * Copyright (c) 2017, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include <immintrin.h>
+
+#include "config/av1_rtcd.h"
+
+#include "aom_dsp/aom_dsp_common.h"
+#include "aom_dsp/x86/convolve_avx2.h"
+#include "aom_dsp/x86/synonyms.h"
+
+void av1_convolve_y_sr_avx2(const uint8_t *src, int src_stride, uint8_t *dst,
+ int dst_stride, int w, int h,
+ const InterpFilterParams *filter_params_x,
+ const InterpFilterParams *filter_params_y,
+ const int subpel_x_qn, const int subpel_y_qn,
+ ConvolveParams *conv_params) {
+ int i, j, is_vert_4tap = 0;
+ // right shift is F-1 because we are already dividing
+ // filter co-efficients by 2
+ const int right_shift_bits = (FILTER_BITS - 1);
+ const __m128i right_shift = _mm_cvtsi32_si128(right_shift_bits);
+ const __m256i right_shift_const =
+ _mm256_set1_epi16((1 << right_shift_bits) >> 1);
+
+ assert(conv_params->round_0 <= FILTER_BITS);
+ assert(((conv_params->round_0 + conv_params->round_1) <= (FILTER_BITS + 1)) ||
+ ((conv_params->round_0 + conv_params->round_1) == (2 * FILTER_BITS)));
+
+ (void)filter_params_x;
+ (void)subpel_x_qn;
+ (void)conv_params;
+ __m256i coeffs[4], s[8];
+ __m128i d[6];
+
+ prepare_coeffs_lowbd(filter_params_y, subpel_y_qn, coeffs);
+
+ // Condition for checking valid vert_filt taps
+ if (!(_mm256_extract_epi32(_mm256_or_si256(coeffs[0], coeffs[3]), 0)))
+ is_vert_4tap = 1;
+
+ // vert_filt as 4 tap
+ if (is_vert_4tap) {
+ const int fo_vert = 1;
+ const uint8_t *const src_ptr = src - fo_vert * src_stride;
+ for (j = 0; j < w; j += 16) {
+ const uint8_t *data = &src_ptr[j];
+ d[0] = _mm_loadu_si128((__m128i *)(data + 0 * src_stride));
+ d[1] = _mm_loadu_si128((__m128i *)(data + 1 * src_stride));
+ d[2] = _mm_loadu_si128((__m128i *)(data + 2 * src_stride));
+ d[3] = _mm_loadu_si128((__m128i *)(data + 3 * src_stride));
+ d[4] = _mm_loadu_si128((__m128i *)(data + 4 * src_stride));
+
+ // Load lines a and b. Line a to lower 128, line b to upper 128
+ const __m256i src_01a = _mm256_permute2x128_si256(
+ _mm256_castsi128_si256(d[0]), _mm256_castsi128_si256(d[1]), 0x20);
+
+ const __m256i src_12a = _mm256_permute2x128_si256(
+ _mm256_castsi128_si256(d[1]), _mm256_castsi128_si256(d[2]), 0x20);
+
+ const __m256i src_23a = _mm256_permute2x128_si256(
+ _mm256_castsi128_si256(d[2]), _mm256_castsi128_si256(d[3]), 0x20);
+
+ const __m256i src_34a = _mm256_permute2x128_si256(
+ _mm256_castsi128_si256(d[3]), _mm256_castsi128_si256(d[4]), 0x20);
+
+ s[0] = _mm256_unpacklo_epi8(src_01a, src_12a);
+ s[1] = _mm256_unpacklo_epi8(src_23a, src_34a);
+
+ s[3] = _mm256_unpackhi_epi8(src_01a, src_12a);
+ s[4] = _mm256_unpackhi_epi8(src_23a, src_34a);
+
+ for (i = 0; i < h; i += 2) {
+ data = &src_ptr[i * src_stride + j];
+ d[5] = _mm_loadu_si128((__m128i *)(data + 5 * src_stride));
+ const __m256i src_45a = _mm256_permute2x128_si256(
+ _mm256_castsi128_si256(d[4]), _mm256_castsi128_si256(d[5]), 0x20);
+
+ d[4] = _mm_loadu_si128((__m128i *)(data + 6 * src_stride));
+ const __m256i src_56a = _mm256_permute2x128_si256(
+ _mm256_castsi128_si256(d[5]), _mm256_castsi128_si256(d[4]), 0x20);
+
+ s[2] = _mm256_unpacklo_epi8(src_45a, src_56a);
+ s[5] = _mm256_unpackhi_epi8(src_45a, src_56a);
+
+ const __m256i res_lo = convolve_lowbd_4tap(s, coeffs + 1);
+ /* rounding code */
+ // shift by F - 1
+ const __m256i res_16b_lo = _mm256_sra_epi16(
+ _mm256_add_epi16(res_lo, right_shift_const), right_shift);
+ // 8 bit conversion and saturation to uint8
+ __m256i res_8b_lo = _mm256_packus_epi16(res_16b_lo, res_16b_lo);
+
+ if (w - j > 8) {
+ const __m256i res_hi = convolve_lowbd_4tap(s + 3, coeffs + 1);
+
+ /* rounding code */
+ // shift by F - 1
+ const __m256i res_16b_hi = _mm256_sra_epi16(
+ _mm256_add_epi16(res_hi, right_shift_const), right_shift);
+ // 8 bit conversion and saturation to uint8
+ __m256i res_8b_hi = _mm256_packus_epi16(res_16b_hi, res_16b_hi);
+
+ __m256i res_a = _mm256_unpacklo_epi64(res_8b_lo, res_8b_hi);
+
+ const __m128i res_0 = _mm256_castsi256_si128(res_a);
+ const __m128i res_1 = _mm256_extracti128_si256(res_a, 1);
+
+ _mm_storeu_si128((__m128i *)&dst[i * dst_stride + j], res_0);
+ _mm_storeu_si128((__m128i *)&dst[i * dst_stride + j + dst_stride],
+ res_1);
+ } else {
+ const __m128i res_0 = _mm256_castsi256_si128(res_8b_lo);
+ const __m128i res_1 = _mm256_extracti128_si256(res_8b_lo, 1);
+ if (w - j > 4) {
+ _mm_storel_epi64((__m128i *)&dst[i * dst_stride + j], res_0);
+ _mm_storel_epi64((__m128i *)&dst[i * dst_stride + j + dst_stride],
+ res_1);
+ } else if (w - j > 2) {
+ xx_storel_32(&dst[i * dst_stride + j], res_0);
+ xx_storel_32(&dst[i * dst_stride + j + dst_stride], res_1);
+ } else {
+ __m128i *const p_0 = (__m128i *)&dst[i * dst_stride + j];
+ __m128i *const p_1 =
+ (__m128i *)&dst[i * dst_stride + j + dst_stride];
+ *(uint16_t *)p_0 = (uint16_t)_mm_cvtsi128_si32(res_0);
+ *(uint16_t *)p_1 = (uint16_t)_mm_cvtsi128_si32(res_1);
+ }
+ }
+ s[0] = s[1];
+ s[1] = s[2];
+
+ s[3] = s[4];
+ s[4] = s[5];
+ }
+ }
+ } else {
+ const int fo_vert = filter_params_y->taps / 2 - 1;
+ const uint8_t *const src_ptr = src - fo_vert * src_stride;
+
+ for (j = 0; j < w; j += 16) {
+ const uint8_t *data = &src_ptr[j];
+ __m256i src6;
+
+ d[0] = _mm_loadu_si128((__m128i *)(data + 0 * src_stride));
+ d[1] = _mm_loadu_si128((__m128i *)(data + 1 * src_stride));
+ d[2] = _mm_loadu_si128((__m128i *)(data + 2 * src_stride));
+ d[3] = _mm_loadu_si128((__m128i *)(data + 3 * src_stride));
+ d[4] = _mm_loadu_si128((__m128i *)(data + 4 * src_stride));
+ d[5] = _mm_loadu_si128((__m128i *)(data + 5 * src_stride));
+ // Load lines a and b. Line a to lower 128, line b to upper 128
+ const __m256i src_01a = _mm256_permute2x128_si256(
+ _mm256_castsi128_si256(d[0]), _mm256_castsi128_si256(d[1]), 0x20);
+
+ const __m256i src_12a = _mm256_permute2x128_si256(
+ _mm256_castsi128_si256(d[1]), _mm256_castsi128_si256(d[2]), 0x20);
+
+ const __m256i src_23a = _mm256_permute2x128_si256(
+ _mm256_castsi128_si256(d[2]), _mm256_castsi128_si256(d[3]), 0x20);
+
+ const __m256i src_34a = _mm256_permute2x128_si256(
+ _mm256_castsi128_si256(d[3]), _mm256_castsi128_si256(d[4]), 0x20);
+
+ const __m256i src_45a = _mm256_permute2x128_si256(
+ _mm256_castsi128_si256(d[4]), _mm256_castsi128_si256(d[5]), 0x20);
+
+ src6 = _mm256_castsi128_si256(
+ _mm_loadu_si128((__m128i *)(data + 6 * src_stride)));
+ const __m256i src_56a =
+ _mm256_permute2x128_si256(_mm256_castsi128_si256(d[5]), src6, 0x20);
+
+ s[0] = _mm256_unpacklo_epi8(src_01a, src_12a);
+ s[1] = _mm256_unpacklo_epi8(src_23a, src_34a);
+ s[2] = _mm256_unpacklo_epi8(src_45a, src_56a);
+
+ s[4] = _mm256_unpackhi_epi8(src_01a, src_12a);
+ s[5] = _mm256_unpackhi_epi8(src_23a, src_34a);
+ s[6] = _mm256_unpackhi_epi8(src_45a, src_56a);
+
+ for (i = 0; i < h; i += 2) {
+ data = &src_ptr[i * src_stride + j];
+ const __m256i src_67a = _mm256_permute2x128_si256(
+ src6,
+ _mm256_castsi128_si256(
+ _mm_loadu_si128((__m128i *)(data + 7 * src_stride))),
+ 0x20);
+
+ src6 = _mm256_castsi128_si256(
+ _mm_loadu_si128((__m128i *)(data + 8 * src_stride)));
+ const __m256i src_78a = _mm256_permute2x128_si256(
+ _mm256_castsi128_si256(
+ _mm_loadu_si128((__m128i *)(data + 7 * src_stride))),
+ src6, 0x20);
+
+ s[3] = _mm256_unpacklo_epi8(src_67a, src_78a);
+ s[7] = _mm256_unpackhi_epi8(src_67a, src_78a);
+
+ const __m256i res_lo = convolve_lowbd(s, coeffs);
+
+ /* rounding code */
+ // shift by F - 1
+ const __m256i res_16b_lo = _mm256_sra_epi16(
+ _mm256_add_epi16(res_lo, right_shift_const), right_shift);
+ // 8 bit conversion and saturation to uint8
+ __m256i res_8b_lo = _mm256_packus_epi16(res_16b_lo, res_16b_lo);
+
+ if (w - j > 8) {
+ const __m256i res_hi = convolve_lowbd(s + 4, coeffs);
+
+ /* rounding code */
+ // shift by F - 1
+ const __m256i res_16b_hi = _mm256_sra_epi16(
+ _mm256_add_epi16(res_hi, right_shift_const), right_shift);
+ // 8 bit conversion and saturation to uint8
+ __m256i res_8b_hi = _mm256_packus_epi16(res_16b_hi, res_16b_hi);
+
+ __m256i res_a = _mm256_unpacklo_epi64(res_8b_lo, res_8b_hi);
+
+ const __m128i res_0 = _mm256_castsi256_si128(res_a);
+ const __m128i res_1 = _mm256_extracti128_si256(res_a, 1);
+
+ _mm_storeu_si128((__m128i *)&dst[i * dst_stride + j], res_0);
+ _mm_storeu_si128((__m128i *)&dst[i * dst_stride + j + dst_stride],
+ res_1);
+ } else {
+ const __m128i res_0 = _mm256_castsi256_si128(res_8b_lo);
+ const __m128i res_1 = _mm256_extracti128_si256(res_8b_lo, 1);
+ if (w - j > 4) {
+ _mm_storel_epi64((__m128i *)&dst[i * dst_stride + j], res_0);
+ _mm_storel_epi64((__m128i *)&dst[i * dst_stride + j + dst_stride],
+ res_1);
+ } else if (w - j > 2) {
+ xx_storel_32(&dst[i * dst_stride + j], res_0);
+ xx_storel_32(&dst[i * dst_stride + j + dst_stride], res_1);
+ } else {
+ __m128i *const p_0 = (__m128i *)&dst[i * dst_stride + j];
+ __m128i *const p_1 =
+ (__m128i *)&dst[i * dst_stride + j + dst_stride];
+ *(uint16_t *)p_0 = (uint16_t)_mm_cvtsi128_si32(res_0);
+ *(uint16_t *)p_1 = (uint16_t)_mm_cvtsi128_si32(res_1);
+ }
+ }
+ s[0] = s[1];
+ s[1] = s[2];
+ s[2] = s[3];
+
+ s[4] = s[5];
+ s[5] = s[6];
+ s[6] = s[7];
+ }
+ }
+ }
+}
+
+void av1_convolve_x_sr_avx2(const uint8_t *src, int src_stride, uint8_t *dst,
+ int dst_stride, int w, int h,
+ const InterpFilterParams *filter_params_x,
+ const InterpFilterParams *filter_params_y,
+ const int subpel_x_qn, const int subpel_y_qn,
+ ConvolveParams *conv_params) {
+ const int bits = FILTER_BITS - conv_params->round_0;
+
+ const __m256i round_0_const =
+ _mm256_set1_epi16((1 << (conv_params->round_0 - 1)) >> 1);
+ const __m128i round_0_shift = _mm_cvtsi32_si128(conv_params->round_0 - 1);
+ const __m256i round_const = _mm256_set1_epi16((1 << bits) >> 1);
+ const __m128i round_shift = _mm_cvtsi32_si128(bits);
+ int i, is_horiz_4tap = 0;
+ (void)filter_params_y;
+ (void)subpel_y_qn;
+
+ assert(bits >= 0);
+ assert((FILTER_BITS - conv_params->round_1) >= 0 ||
+ ((conv_params->round_0 + conv_params->round_1) == 2 * FILTER_BITS));
+ assert(conv_params->round_0 > 0);
+
+ __m256i coeffs[4], filt[4];
+ filt[0] = _mm256_load_si256((__m256i const *)(filt_global_avx2));
+ filt[1] = _mm256_load_si256((__m256i const *)(filt_global_avx2 + 32));
+
+ prepare_coeffs_lowbd(filter_params_x, subpel_x_qn, coeffs);
+
+ // Condition for checking valid horz_filt taps
+ if (!(_mm256_extract_epi32(_mm256_or_si256(coeffs[0], coeffs[3]), 0)))
+ is_horiz_4tap = 1;
+
+ // horz_filt as 4 tap
+ if (is_horiz_4tap) {
+ const int fo_horiz = 1;
+ const uint8_t *const src_ptr = src - fo_horiz;
+ if (w <= 8) {
+ for (i = 0; i < h; i += 2) {
+ const __m256i data = _mm256_permute2x128_si256(
+ _mm256_castsi128_si256(
+ _mm_loadu_si128((__m128i *)(&src_ptr[i * src_stride]))),
+ _mm256_castsi128_si256(_mm_loadu_si128(
+ (__m128i *)(&src_ptr[i * src_stride + src_stride]))),
+ 0x20);
+
+ __m256i res_16b = convolve_lowbd_x_4tap(data, coeffs + 1, filt);
+
+ res_16b = _mm256_sra_epi16(_mm256_add_epi16(res_16b, round_0_const),
+ round_0_shift);
+
+ res_16b = _mm256_sra_epi16(_mm256_add_epi16(res_16b, round_const),
+ round_shift);
+
+ /* rounding code */
+ // 8 bit conversion and saturation to uint8
+ __m256i res_8b = _mm256_packus_epi16(res_16b, res_16b);
+
+ const __m128i res_0 = _mm256_castsi256_si128(res_8b);
+ const __m128i res_1 = _mm256_extracti128_si256(res_8b, 1);
+
+ if (w > 4) {
+ _mm_storel_epi64((__m128i *)&dst[i * dst_stride], res_0);
+ _mm_storel_epi64((__m128i *)&dst[i * dst_stride + dst_stride], res_1);
+ } else if (w > 2) {
+ xx_storel_32(&dst[i * dst_stride], res_0);
+ xx_storel_32(&dst[i * dst_stride + dst_stride], res_1);
+ } else {
+ __m128i *const p_0 = (__m128i *)&dst[i * dst_stride];
+ __m128i *const p_1 = (__m128i *)&dst[i * dst_stride + dst_stride];
+ *(uint16_t *)p_0 = (uint16_t)_mm_cvtsi128_si32(res_0);
+ *(uint16_t *)p_1 = (uint16_t)_mm_cvtsi128_si32(res_1);
+ }
+ }
+ } else {
+ for (i = 0; i < h; ++i) {
+ for (int j = 0; j < w; j += 16) {
+ // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 8 9 10 11 12 13 14 15 16 17
+ // 18 19 20 21 22 23
+ const __m256i data = _mm256_inserti128_si256(
+ _mm256_loadu_si256((__m256i *)&src_ptr[(i * src_stride) + j]),
+ _mm_loadu_si128((__m128i *)&src_ptr[(i * src_stride) + (j + 8)]),
+ 1);
+
+ __m256i res_16b = convolve_lowbd_x_4tap(data, coeffs + 1, filt);
+
+ res_16b = _mm256_sra_epi16(_mm256_add_epi16(res_16b, round_0_const),
+ round_0_shift);
+
+ res_16b = _mm256_sra_epi16(_mm256_add_epi16(res_16b, round_const),
+ round_shift);
+
+ /* rounding code */
+ // 8 bit conversion and saturation to uint8
+ __m256i res_8b = _mm256_packus_epi16(res_16b, res_16b);
+
+ // Store values into the destination buffer
+ // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
+ res_8b = _mm256_permute4x64_epi64(res_8b, 216);
+ __m128i res = _mm256_castsi256_si128(res_8b);
+ _mm_storeu_si128((__m128i *)&dst[i * dst_stride + j], res);
+ }
+ }
+ }
+ } else {
+ const int fo_horiz = filter_params_x->taps / 2 - 1;
+ const uint8_t *const src_ptr = src - fo_horiz;
+ filt[2] = _mm256_load_si256((__m256i const *)(filt_global_avx2 + 32 * 2));
+ filt[3] = _mm256_load_si256((__m256i const *)(filt_global_avx2 + 32 * 3));
+
+ if (w <= 8) {
+ for (i = 0; i < h; i += 2) {
+ const __m256i data = _mm256_permute2x128_si256(
+ _mm256_castsi128_si256(
+ _mm_loadu_si128((__m128i *)(&src_ptr[i * src_stride]))),
+ _mm256_castsi128_si256(_mm_loadu_si128(
+ (__m128i *)(&src_ptr[i * src_stride + src_stride]))),
+ 0x20);
+
+ __m256i res_16b = convolve_lowbd_x(data, coeffs, filt);
+
+ res_16b = _mm256_sra_epi16(_mm256_add_epi16(res_16b, round_0_const),
+ round_0_shift);
+
+ res_16b = _mm256_sra_epi16(_mm256_add_epi16(res_16b, round_const),
+ round_shift);
+
+ /* rounding code */
+ // 8 bit conversion and saturation to uint8
+ __m256i res_8b = _mm256_packus_epi16(res_16b, res_16b);
+
+ const __m128i res_0 = _mm256_castsi256_si128(res_8b);
+ const __m128i res_1 = _mm256_extracti128_si256(res_8b, 1);
+ if (w > 4) {
+ _mm_storel_epi64((__m128i *)&dst[i * dst_stride], res_0);
+ _mm_storel_epi64((__m128i *)&dst[i * dst_stride + dst_stride], res_1);
+ } else if (w > 2) {
+ xx_storel_32(&dst[i * dst_stride], res_0);
+ xx_storel_32(&dst[i * dst_stride + dst_stride], res_1);
+ } else {
+ __m128i *const p_0 = (__m128i *)&dst[i * dst_stride];
+ __m128i *const p_1 = (__m128i *)&dst[i * dst_stride + dst_stride];
+ *(uint16_t *)p_0 = _mm_cvtsi128_si32(res_0);
+ *(uint16_t *)p_1 = _mm_cvtsi128_si32(res_1);
+ }
+ }
+ } else {
+ for (i = 0; i < h; ++i) {
+ for (int j = 0; j < w; j += 16) {
+ // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 8 9 10 11 12 13 14 15 16 17
+ // 18 19 20 21 22 23
+ const __m256i data = _mm256_inserti128_si256(
+ _mm256_loadu_si256((__m256i *)&src_ptr[(i * src_stride) + j]),
+ _mm_loadu_si128((__m128i *)&src_ptr[(i * src_stride) + (j + 8)]),
+ 1);
+
+ __m256i res_16b = convolve_lowbd_x(data, coeffs, filt);
+
+ res_16b = _mm256_sra_epi16(_mm256_add_epi16(res_16b, round_0_const),
+ round_0_shift);
+
+ res_16b = _mm256_sra_epi16(_mm256_add_epi16(res_16b, round_const),
+ round_shift);
+
+ /* rounding code */
+ // 8 bit conversion and saturation to uint8
+ __m256i res_8b = _mm256_packus_epi16(res_16b, res_16b);
+
+ // Store values into the destination buffer
+ // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
+ res_8b = _mm256_permute4x64_epi64(res_8b, 216);
+ __m128i res = _mm256_castsi256_si128(res_8b);
+ _mm_storeu_si128((__m128i *)&dst[i * dst_stride + j], res);
+ }
+ }
+ }
+ }
+}
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